Fig. 1

Schematic representations of the proteins used in this study. Thermostabilized forms of C. thermocellum catalytic modules are shown in red pictograms and denoted by an asterisk. The origin of the bacterial species from which the cohesins were acquired is shown color-coded in the key. For the purposes of this study, modular components from the thermophilic microbes, C. thermocellum, C. clariflavum and A. fulgidus, are considered inherently thermostable, relative to those from the mesophilic B. cellulosolvens and A. cellulolyticus